I just bought a GL.iNet GL-MT6000 router and noticed it runs:
OpenWrt 21.02-SNAPSHOT r15812+1085-46b6ee7ffc
From what I understand, this is an old development version that might lack important security updates.
My questions are:
Why does a brand new router come with such an outdated snapshot version?
Is there an official way to upgrade to a newer OpenWrt (like 23.05 or newer) without losing GL.iNet’s custom features (GUI, VPN, AdGuard, etc.)?
Does anyone have a step-by-step guide to safely update the firmware via LUCI or SSH, keeping the GL.iNet environment intact?